285947463 has 32 divisors (see below), whose sum is σ = 417491712. Its totient is φ = 173376000.

The previous prime is 285947447. The next prime is 285947471. The reversal of 285947463 is 364749582.

It is not a de Polignac number, because 285947463 - 2⁴ = 285947447 is a prime.

It is a super-2 number, since 2×285947463² = 163531903192272738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285927463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220848 + ... + 222138.

It is an arithmetic number, because the mean of its divisors is an integer number (13046616).

Almost surely, 2^285947463 is an apocalyptic number.

285947463 is a deficient number, since it is larger than the sum of its proper divisors (131544249).

285947463 is a wasteful number, since it uses less digits than its factorization.

285947463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455.

The product of its digits is 1451520, while the sum is 48.

The square root of 285947463 is about 16909.9811649806. The cubic root of 285947463 is about 658.8128821244.

The spelling of 285947463 in words is "two hundred eighty-five million, nine hundred forty-seven thousand, four hundred sixty-three".